输入地址得到经纬度

需要集成百度地图

CLGeocoder *myGeocoder = [[CLGeocoder alloc] init];

[myGeocoder geocodeAddressString:_searchBar.text completionHandler:^(NSArray *placemarks, NSError *error) {
    if ([placemarks count] > 0 && error == nil) {
      CLPlacemark *firstPlacemark = [placemarks objectAtIndex:0];
      NSLog(@"%f",firstPlacemark.location.coordinate.latitude);
      NSLog(@"%f",firstPlacemark.location.coordinate.longitude);
  }else if ([placemarks count] == 0 && error == nil) {
      NSLog(@"Found no placemarks.");
  }else if (error != nil) {
      NSLog(@"An error occurred = %@", error); 
} }];